A remarkable pair of WNBA teams will face each other at 3:30 p.m. ET Tuesday afternoon in a battle of unbeatens unseen in any major sport when the 12-0 Minnesota Lynx play the 11-0 Los Angeles Sparks at the Staples Center.

The two teams have already passed the 2012 Lynx, who began their season 10-0, for the best start in WNBA history. But across sports, this is singular: No two teams have ever played after starting the season with more than 10 wins without a loss or tie in the MLB, NBA, NFL, NHL or MLS.

“It’s exciting for fans of this league, and a chance to get some more eyeballs on this league,” Lynx coach Cheryl Reeve said in a conference call Monday. “We’re doing something that no league in professional sports has done — having two teams that are undefeated — no losses, no ties, at this point in the season. So that’s something external that’s great for the league.”